20 citations,
October 2017 in “Drug testing and analysis” Drugs localize differently in hair strands based on their properties.
January 2009 in “Side effects of drugs annual” Some drugs can cause serious side effects like heart issues and nervous system problems, but certain drugs for Parkinson's and overactive bladder may be safer, though they still have some common side effects.
581 citations,
February 1998 in “The American Journal of Medicine” Herbal remedies can cause adverse effects and need more safety research.
393 citations,
November 2000 in “Archives of General Psychiatry” Testosterone is important for men's sexual function, may help some women's sexual desire, while other hormones and neurotransmitters also play complex roles in sexual behavior.
153 citations,
October 2012 in “Skin Pharmacology and Physiology” Caffeine in cosmetics may reduce cellulite, protect skin, and stimulate hair growth, but more research is needed on its use and effects.